Device for measuring, regulating, and metering supply or distribution of fluids



Aug. 2,1932.

R. ABRAMS DEVICE FOR MEASURING, REGULATING, AND METERING SUPPLY OR DISTRIBUTION 0F FLUIDS Filed July l, 1930 Patented Aug. 2, 1932 UNITED STATES PATENT CFFICE VICTOR n. ABnAMs, or BnqNswIcx, GEORGIA :DEVICE FOB MEASUBING, REGULATIN'G, AND METERING SUPPLY OR DISTRIBUTION 02|? FLUIDS Application led July 1, 1930. Serial No. 465,225.

This invention relates to improvements in devices for measuring, regulating and metering the quantity of fluid which will flow through an orifice upon the application of pressure to the Huid, and the primary object of the invention is to provide such a device as will accurately perform these functions without the us'eof valves such as are ordinarily used with any measuring piston driven by mechanical means.

A further object is to furnish a device of this character, inclu-ding a cylinder in which a plurality of pistons operate, the construction being such that at least one of the pistons will positively obstruct the bore of the barrel at all times to absolutely revent the passage of any Huid through t e device without proper functioning ofthe pistons.

A further object is to provide a device of go this kind which islof simple inexpensive and durable construction, land one in which the,

various elements may be readily assembled or dismantled to facilitate replacement of parts or cleaning of the device.

With the foregoing objects outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accom- '30 panying drawing, and more particularly pointed out in the appended claims.

Referring to the drawing,

Fig. 1 is a longitudinal Ysectional view of the device illustrated as interposed in a lubricating system, and with the pistons in the positions which they occupy when the structure is ready to be charged. Fig. 2 is a similar view of the device, but showmg the pistons in the positions they assume when the'device is charged.

Fig. 3 is a like view, but with the parts in the posltions they occupy during lthe discharge period.

Fig. 4 is an elevation. of one end of either piston.

My improved measuring, regulatmg and metering device may he employed in connection with any fluid, and is.-

like.

articularly use# ful when em lo ed inali u ipe line or the P y p pipe 15 through the Opclung. lj, I mu Pass In the drawing, 4 designates a cylinder having a bore 5, preferably of cylindrical shape, which merges at its ends into annular shoulders 6 and 7 that extend outwardly to cylindrical surfaces 8 and 9 that are of larger diameter than the cylindrical surface of the main portion of the bore.

Caps 10 and 11 are connected to the ends of the cylinder by any suitable means such as screw threads 12, and the caps have centrally disposed threaded apertures 13 and 1.1. which are adapted to be connected to any suitable means, such as pipes 15 Iand 16 which feed the pressure fluid to and from the device. If the device is employed in a lubricating system, the pipe 15 will convey the lubricant from a suitable pressure source, and the pipe 16 will lead the lubricant from the device to the part or parts to be lubricated.

AStop fingers 17 and 18 project inwardly from the caps and function to halt' the pistons 20 and 21, so as to prevent the same from seating snugly against the caps. Each piston has a cylindrical surface 22 which is interrupted by diametrically opposite notches or rabbets 23. The cylindrical surface is of such ldiameter as to snugly fit the cylindrical bore 5, and each piston is hollowed out to provide an internal socket 25. These sockets are of the same diameter as heads orV flanges 26 ar'- ranged on the ends of aconnecting rod 27. Stop pins 28 project radially through the pistons into close proximity with the rod 27, and the heads 26 are adapted to move between these stop pins and the heads of the pistons.

A coiled spring 29 is arranged in the cylinder and abuts at its ends against the inner ends of the pistons for the purpose of holding the piston 21 away from the piston 20, at a certain time. i

A stronger coiled spring 30 is` arranged in -the cylinder, and has one of its ends abutting against the cap mal position,1 this spring forces the same into 10, and its other end abutting the piston 20and when the parts'are 1n no'rthe position shown in Fig. 1, and maintains -the spring 29 under compression. A

. The operation of the de, c e-is asu'follows'. p 100.

When a pressure fluid i'sforcedby way of 4From such place, it will continue to flow y through the notches 23, into the space between the two pistons and will then actto force the piston 20 away from the piston 21. This action will continue until the abutment pin 28 of the piston 20 engages the head 26 at' the left endof the connecting rod, and while the piston 20 is V:moving in such manner, the spring 29 will prevent the piston 21 from disengaging the pins 18. As soon, however, as the abutment 28 of the piston 20 strikes the head 26 at that end of the rod, the latter will commencel to move with the piston 20, and such movementwill continue until the head 26, at the other end of the rod abuts against the pin 28 of the piston 21. As the pressure fluid continues to enter, the pistons will now move toward the left in unison until the parts reach theposition shown in Fig. 2.- At such time, the two pistons will be closing the ends of t-he bore 5, and the charge which is arranged in the bore between the pistons, will be an accurately measured one. For the purpose of discharging such charge, the introductioitof the pressure fluid is continued, and as it acts against the head of the piston 2l, it will cause the latter to exert pressure on the charge, and to force the piston 20 into contact with the stop fingers 17, and as the pressure is continued, the charge will be forced out through the aperture 13, and the parts will assume the positionl shown in Fi 3. As soon as the charge has been complete y transferred by the device, the pressure on the fluid entering through the aperture 14 is relieved, with the result-,that the spring 30 moves the pistons toward the right hand end of the cylinder, or back to the position shown inFig. 1,

v in which position, the parts will be ready to receive a second charge.

It will be. noted that this device employs no valves such "as are ordinarily used with measuring pistons driven by mechanical means. Furthermore, there is no time duri-'n0' its operation, when one or the other or both pistons are not in the bore 5. Consequently, there is absolutely no possibility of liquid passing through. the device without proper functioning of the pistons, and except "for 'leakage between the pistons and the bore 5,

'Y its action is entirely positive and independ ent of the pressure'fluid. In other words, it will deliver the same quantity of liquid at l0 pounds or 100 pounds, or will deliver the same quantity on practically an instantaneous pulsation, as it will supply on a relatively long period motion. vThis enables the device to machinery,

-be used at locations remote from the fluid pressure,such. as the individual bearings of and other places difficult of accontemplate its application for this purpose, particularly in the lubrication of the chassis of an automobile, also to line shafts, conveyors and other machinery which are inaccessible, but which by means of the invention, may be supplied by a trunk line arranged at a convenient point.

The invention will also be used for the measuring of fluids in industrial processes, in the dispensing of carbonated fluids for making carbonated beverages, inthe regulation and measuring of Syrups, oils and other liquids in the canning, packing and bottling industries. In short, I contemplate employing the device in any environment where it will b'e applicable. v A

From the foregoing it is believed that the construction, operation and advantages of the vinvention may be readily understood, and I am aware that changes may be made in the details disclosed, without departing from the spirit of the invention, as expressed in the claims.

What is claimed and desired to be secured byLett-ers Patent is:

1. A measuring device including a cylinder having a bore provided with enlarged portions, pistons movably mounted in the bore, and means connecting the pistons and permitting one of the pistons to move relatively to the other, the space between the pistons constituting a measuring chamber, and thepistons being operable under fluid pressure to charge and discharge the measuring chamber.

2. In a device of the-character described,

a cylinder having` a bore, connected pistons operating in the bore, the pistons and cylinder being shaped to permit fluid to flow past either one of the pistons while the other piston completely obstructs the bore, the space between the pistons constituting a measuring chamber. and the pistons being operable under fluid pressure'to charge andl discharge the measuring chamber.

3. A device of the character described, includingv a. cylinder, relativelv movable connected pistons arranged in the cylinder, the

cylinder'beinar shaped to permit fluid 4to flow past one of the pistons while the other piston completelv obstructs the cylinder, the space between the pistons constituting a measuring chamber. and the pistons being operable under fluid pressure to charge and discharge the measuring chamber.

4. In a. device of the character described, a cylinder having a bore, caps closing ,the

ends'y of the bore, relatively movable connected pistons arranged in the bore, the bore being shaped to permit fluid in the bore to flow past one of the pistons and to be obstructed by the other piston, thespace between the pistons constitutinga measuring chamber, and the pistons being operable under Y duid pressure to charge and discharge the vsaid caps,

measuring chamber.

5. In a device of the character described, a cylinder having a bore, aperturedy'caps closing the ends of the bore, and relatively movable connected pistons arranged in the bore, the bore being shaped to permit fluid to flow in the bore past one of the pistons, while the other piston completely closes the bore, the space between the pistons constituting a measuring chamber, and the pistons being operable under fluid pressure to charge and discharge the measuring chamber.

6. In a device of the character described, a cylinder having' ahora, apertured ca s closing the ends of the bore, and relative y movable connected pistons arranged inthe bore, the bore being shaped to permit iiuid,

to flow in the bore past one of the pistons, while the other piston completley closes the bore, and means for preventingthe pistons from snugly seating against either one of the space between the pistons constituting a measuring chamber, and the pistons being operable under fluid-pressure to charge and discharge the measuring cham- Aber.l

" a cylinder having a 7. In a device of the character described, bore, apertured caps closing' the ends of the bore, relatively movable connected pistons arranged within the bore, and each being of the same diameter as the main portion of the bore, the bore having enlargements at its end portions to' allow -fluid to ilow around the pistons when they occupy such portions the space between the pistons constituting a measuring chamber, and the pistons being operable under duid i pressure to charge and discharge the measuring chamber.

8. In a device ofthe character described, a cylinder having a bore, apertured caps closing the ends of the bore, connected istons arranged within the bore, and each eing of the same diameter as the main portion of the bore, the bore having enlargements at its end portions to allow fluid to flow around the pistons when they occupy such portions, and means for normale ly. urging caps, the space between the pistons constituting'a measuring chamber, and the pistons being operable under fluid pressure to charge and discharge the measuring chamber. 9. In a device of the character described, a cylinder havin a bore, apertured caps closing the ends o the bore, relatively movable connected pistons arranged within the bore, and each being of the same diameter `as the main portion of the bore, thel bore having enlargements at its end portions to allow fluid to. iow around the pistons when lthey occupy such rtions, and aspring in the bore one of said caps, the space between the pistons relatively movable` the pistons toward one of saidfor forcing both toward fluid from theother end of the bore, pistons constituting a measuring chamber, and the pistons being o rable under fluid pressure to charge. an discharge the measuring( chamber. *i

piston away fromv the' other,, the space between the pistons constitutinga measuring chamber, and the pistons being operable under fluid pressure to charge and discharge the measuring chamber.v

11. In a device of the character described, a cylinder having'abore provided with enlarged end porticnsrcaps closi the ends of the bore, means to iluld into one end of the bore, means for discharging the fluid from the other end of the bore, pistons arranged in the bore, each piston having a portionfof the samel diameter as the main portionf the bore, means connecting the pistons and permitting the same to move relatively to one another, a spring arranged between the pistons and adapted to hold one piston' away from the other, and" another spring arranged between one of the caps and l one of -the pistons, the last mentioned spring being stronger than the first mentioned spring and :functioning to normally com res the first mentioned spring and to force th pistons toward one end of the bore.

12. In a device of the character described, a cylinder having a bore provided with en- ,larged end portions, caps closing the ends of the bore, means to admit fluid into one end `of the bore, means for discharging the fluid from the other end/of the bore, pistons arranged in the bore, each piston having a portion of the same diameter as the main pprtion of the bore, means connecting the pistons and permitting the same to move relatively'to one another, a, spring arranged betweenthe pistons and adapted to hold one piston away from the other, and another spring arranged between one of the caps and one'of the pistons, the last mentioned spring being stronger than the first mentioned spring and functioning to normally compress t e first mentioned spring and -to force both pistons toward one end of the bore, each pisends of the bore, means to adm'it fluid into onev end othebOre, means for discharging the.A

arranged in the bore, each piston having a portion of ,thelsame diameter as the main s portion of the bore, means connecting the pistons and permitting the same to move lrelatively to one another, a spring arranged between the pistons and adapted to hold one piston away from the other, and another spring arranged between one ofthe caps and one of the pistons, the last mentioned spring being stronger than the first mentioned spring and functioning to normally compress the first mentioned spring and to force both pistons toward one end of the bore, said connecting means comprising a rod having heads which slide in the pistons.

14.:` In a device of the character described, a cylinder having a bore provided With enlarged end portions, caps detachably connected to the ends of the cylinder and provided with inlet and outlet apertures, a pair of pistons arranged lin the bore, a rod having its ends vconnected to the pistons, the rod being movable relatively to the pistons and each piston being movable relatively to the other, a coiled spring bearing at one end against one of said caps and at its oppositeend against one of the pistons for: normally forcing the pistons toward the other cap so that one of the pistons will normally occupy one of the enlarged portions of the bore, and another coiled spring arranged between the pistons and functioning under certainvconditions to prevent one piston yfrom moving while the other is moving away from that piston.

In testimony whereof I aiiix my signature.

vIoToR R. ABRAMs. 

